Messages in this thread | | | Date | Tue, 16 Nov 1999 20:19:57 -0800 (PST) | From | Andre Hedrick <> | Subject | Re: hot(un)plugging IDE disks |
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As for the full rescan of the block device upon open........ It is on the list of things to do/finish............
Complain to me and not -ml, he is nice enough to cover when I am out of pocket or do not have time to get to all messages.
Andre Hedrick The Linux IDE guy
On Tue, 16 Nov 1999, Francois-Rene Rideau wrote:
> On Sat, Nov 13, 1999 at 01:28:41PM -0500, Mark Lord wrote: > > Easy. There are NO hotswappable IDE bays. > [Ok, except for the previously advertised $$$ raidzone.com]. > > > Still, a few clowns (like you and I) sometimes think it would be nice > > to support them anyway. > Yeah! > > > The best way to do it is to place them on > > a separate IDE interface chip, independent of any "permanent" drives. > Ok (although I took the risk of putting a CDROM as slave of the removable > IDE hda, to allow for the possibility of a removable losedoze partition > that would nonetheless see the CD). > > Still, the remaining question is: how to tell the kernel to rescan > for a new drive geometry? > > > It also allows using modules to load/unload the IDE support as needed, > > exactly the way that the existing PCMCIA code handles it. > The problem is, you can't unload the IDE support when the root filesystem > is on (another) IDE interface. > > > Look there for details. > PCMCIA uses a utility named "ide_info", but that utility seemingly won't help > with the geometry problem. The geometry stuff looks like it is handled inside > the PCMCIA modules. > > Ionut Badulescu (multu mesc!) proposed to use > ioctl(fd, HDIO_SCAN_HWIF, args); > but it requires having a fd already open on the same IDE interface, > which I can do thanks to my CDROM, but which is incompatible with the setup > you recommend. Also, he says the code is basically unused, and sometimes > crashes on him; and also that he can't enable DMA with it. > I'll test when I have my monitor repaired (Grrr!). > > Best regards, > > [ "Faré" | VN: Уng-Vû Bân | Join the TUNES project! http://www.tunes.org/ ] > [ FR: François-René Rideau | TUNES is a Useful, Nevertheless Expedient System ] > [ Reflection&Cybernethics | Project for a Free Reflective Computing System ] > Pyramid schemes are illegal. Social Security is a pyramid scheme. > -- Alan Grimes > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.rutgers.edu > Please read the FAQ at http://www.tux.org/lkml/ >
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